JP2001278708A - Cockroach attractant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cockroach attractant that strongly attracts cockroaches and retains the durable and stabilized effect. SOLUTION: The objective cockroach attractant includes, as an active ingredient, at least one selected from the group consisting of 2-ethyl-5-methyl-4- hydroxy-3(2H)-furanone, 2-methyltetrahydro-furan-3-one and 4,5-dimethyl-3- hydroxy-2(5H)-dihydro-furanone.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a cockroach attractant containing a specific type of furanone derivative. The cockroach attractant allows the cockroaches to be collected at a specific place, and the cockroach can be used to monitor the occurrence of cockroaches. It is also possible to control cockroaches by using them together with insecticides.

[0002]

2. Description of the Related Art Conventionally, maltol, ethyl maltol (JP-A-52-38024), alcohols, aldehydes and lactones in plant extracts (JP-A-52-82729), maple, birch , Yeast extract, carmella (JP-A-52-82728) and the like are known to attract cockroaches. However, they had low activity and required high concentrations for effective use.

Further, since it has been reported that a furanone derivative has an attraction effect on cockroaches (Japanese Patent Application Laid-Open No. 50-49434), a furanone derivative and a cyclopentenone derivative having strong attraction have been synthesized one after another. (JP-A-56-133201
No .: Japanese Patent Publication No. 7-218845; Japanese Patent Laid-Open No. 10-101513). Although these components have a certain degree of attraction, there are some which lack the sustainability and stability of the effect, and have a practical problem.

[0004]

SUMMARY OF THE INVENTION The present invention has been made under such a background, and an object of the present invention is to strongly attract cockroaches, and to maintain the effect and the stability of the effect. It is to provide a high cockroach attractant.

[0005]

Means for Solving the Problems In order to solve the above-mentioned problems, the present inventor has screened attractants for various kinds of furanone derivatives and cyclopentenone derivatives in order to find a substance having a high attracting effect to cockroaches. Was done. As a result, we found three potential attractants.
These are substances having a high attracting effect, being liquid, can be encapsulated in a sustained-release device, and have high stability. The present invention has been made based on such findings.

That is, the present invention relates to 2-ethyl-5-methyl-4-hydroxy-3 (2H) -furanone, 2-methyltetrahydrofuran-3-one, and 4,5-dimethyl-3-hydroxy- 2 (5
A cockroach attractant comprising at least one selected from the group consisting of H) -dihydrofuranone as an active ingredient.

The present invention also relates to 2-ethyl-5-methyl-4-hydroxy-3 (2H) -furanone, 2-methyltetrahydrofuran-3-one and 4,5-dimethyl-3-hydroxy- 2 (5
H.-dihydrofuranone is an agent for controlling a golibli contains at least one selected from the group consisting of H) -dihydrofuranone and an insecticidal component.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
The cockroach attractant of the present invention is 2-ethyl-5-methyl-4-hydroxy-3 (2H) -furanone, 2-methyltetrahydrofuran-3-one, and 4,5-dimethyl-3-hydroxy-2 (5H)
-At least one selected from the group consisting of -dihydrofuranone as an active ingredient.

The cockroach attractant of the present invention is obtained by dissolving the above-mentioned furanone derivative in a suitable solvent, for example, water, acetone, methanol, ethanol, glycerin, propylene glycol, etc., and converting the solution into a suitable carrier, for example, paper, It can be used by holding it on a cloth, nonwoven fabric, or the like. At this time, the amount of the furanone derivative as the active ingredient is not particularly limited, but is suitably about 1 to 100 mg per carrier. Further, the carrier for holding the attractant can be wrapped in a plastic film to give a sustained release property. Further, an attracting pressure-sensitive adhesive sheet, an attracting bait and the like can be produced by being contained in an adhesive or a resin, used together with an insecticide, or blended in a bait.

Commonly used insecticides include organophosphorus insecticides (dichlorvos, fenitrothion, diazinon), carbamate insecticides (sevin, propoxer), pyrethroid insecticides (permethrin, resmethrin, phenothrin), and their respective isomers. And analogs. In addition to the above, known agents such as hydrazone-based insecticides, oxadiazole-based insecticides, insect juvenile hormone agents, and boric acid can be selectively used for the purpose.

The attractant of the present invention can be applied to cockroaches without being limited by species, developmental stage, sex, and the like. Also, using emulsifiers, dispersants, penetrants, suspending agents, wetting agents, spreading agents, excipients, stabilizers, etc.,
Attractants such as oils, wettable powders, powders, granules, pills, tablets, aerosols, heat transpirations, and smokers can also be produced.

[0012]

[Example 1]

(1) Test method As shown in Fig. 1, a plastic cage (100 x 100
A shelter was formed on one side within 120 cm), and 120 German cockroaches (30 repeats 4 times) were released and allowed to settle down, and then the attractant of the present invention (5 mg / device, 2.5 kinds of mixed agent was used). The adhesive paper (Trap A) provided with the mixture (mixed in mg units) was placed on the opposite side of the shelter. Adhesive paper without attractant or a commercial adhesive paper trap was placed as a control (Trap B). One hour later, cockroaches on both traps captured were counted. Since the top of the cage was open, oil was applied to the inner wall so that the insects did not escape. (2) Test results

[0013]

[Table 1]

Example 2 The test method was the same as in Example 1, except that the attractant was left standing for one month after preparation.

[0015]

[Table 2]

Example 3 A mixture of equal amounts of rice bran (2 g) and corn flour (2 g) was added with 5% of fenitrothion microcapsules (commercially available), and the mixture was stirred. mg / device) to give a bait. Cage with 40 German cockroaches released (Figure 1)
The bait was placed at the center of the sample, and the dead insects were counted one week later. As a control, the same test was performed without using the fenitrothion microcapsule preparation alone or without the test agent, and the number of dead insects was compared.

[0017]

[Table 3]

Example 4 In a restaurant where the occurrence of German cockroaches is expected, sticky traps each equipped with one attractant of the present invention (10 mg / device) are placed on the floor, and as a result of investigation on the next day, Many German cockroaches were also captured in the trap.

[0019]

[Table 4]

[0020]

The present invention provides a novel cockroach attractant. This cockroach attractant strongly attracts cockroaches, has high effect persistence and high stability, and exhibits excellent properties as compared with existing cockroach attractants.

[Brief description of the drawings]

FIG. 1 is a diagram showing an apparatus used in tests of Example 1, Example 2, and Example 3.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masahiro Kono 3-5-8 Midorigaoka, Hamura-shi, Tokyo Inside Fuji Flavor Co., Ltd. (72) Mikio Ono 3-5-8 Midorigaoka, Hamura-shi, Tokyo Fuji flavor F term in reference (reference) 4H011 AC01 AC07 BA06 BA08 BB08 BB17 DA17 DB03 DC05 DD05 DG13

Claims (2)

[Claims] (1) 2-ethyl-5-methyl-4-hydroxy-3 (2
H) -furanone, 2-methyltetrahydrofuran-3-one,
And a cockroach attractant containing at least one selected from the group consisting of 4,5-dimethyl-3-hydroxy-2 (5H) -dihydrofuranone as an active ingredient. (2) 2-ethyl-5-methyl-4-hydroxy-3 (2
H) -furanone, 2-methyltetrahydrofuran-3-one,
And at least one selected from the group consisting of 4,5-dimethyl-3-hydroxy-2 (5H) -dihydrofuranone, and an insecticidal component.